2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "../afs/param.h"
15 #include "../afs/sysincludes.h" /* Standard vendor system headers */
16 #include "../afs/afsincludes.h" /* Afs-based standard headers */
17 #include "../afs/afs_stats.h" /* afs statistics */
19 #include <sys/adspace.h> /* for vm_att(), vm_det() */
22 static char memZero; /* address of 0 bytes for kmem_alloc */
28 /* osi_Init -- do once per kernel installation initialization.
29 * -- On Solaris this is called from modload initialization.
30 * -- On AIX called from afs_config.
31 * -- On HP called from afsc_link.
32 * -- On SGI called from afs_init. */
35 lock_t afs_event_lock;
45 if (once++ > 0) /* just in case */
47 #if defined(AFS_HPUX_ENV)
49 #else /* AFS_HPUX_ENV */
50 #if defined(AFS_GLOBAL_SUNLOCK)
51 #if defined(AFS_SGI62_ENV)
52 mutex_init(&afs_global_lock, MUTEX_DEFAULT, "afs_global_lock");
53 #elif defined(AFS_OSF_ENV)
54 usimple_lock_init(&afs_global_lock);
55 afs_global_owner = (thread_t)0;
56 #elif defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
57 lockinit(&afs_global_lock, PLOCK, "afs global lock", 0, 0);
59 #elif defined(AFS_AIX41_ENV)
60 lock_alloc((void*)&afs_global_lock, LOCK_ALLOC_PIN, 1, 1);
61 simple_lock_init((void *)&afs_global_lock);
63 #ifndef AFS_LINUX22_ENV
64 /* Linux initialization in osi directory. Should move the others. */
65 mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL);
68 /* afs_rxglobal_lock is initialized in rx_Init. */
70 #endif /* AFS_HPUX_ENV */
72 if ( !afs_osicred_initialized )
74 memset((char *)&afs_osi_cred, 0, sizeof(struct AFS_UCRED));
75 crhold(&afs_osi_cred); /* don't let it evaporate */
76 afs_osicred_initialized = 1;
79 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
83 int osi_Active(register struct vcache *avc)
85 AFS_STATCNT(osi_Active);
86 #if defined(AFS_SUN_ENV) || defined(AFS_AIX_ENV) || defined(AFS_OSF_ENV) || defined(AFS_SUN5_ENV) || (AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
87 if ((avc->opens > 0) || (avc->states & CMAPPED)) return 1; /* XXX: Warning, verify this XXX */
89 #if defined(AFS_MACH_ENV)
90 if (avc->opens > 0 || ((avc->v.v_flag & VTEXT) && !inode_uncache_try(avc))) return 1;
92 #if defined(AFS_SGI_ENV)
93 if ((avc->opens > 0) || AFS_VN_MAPPED(AFSTOV(avc)))
96 if (avc->opens > 0 || (AFSTOV(avc)->v_flag & VTEXT)) return(1);
98 #endif /* AFS_MACH_ENV */
103 /* this call, unlike osi_FlushText, is supposed to discard caches that may
104 contain invalid information if a file is written remotely, but that may
105 contain valid information that needs to be written back if the file is
106 being written locally. It doesn't subsume osi_FlushText, since the latter
107 function may be needed to flush caches that are invalidated by local writes.
109 avc->pvnLock is already held, avc->lock is guaranteed not to be held (by
112 void osi_FlushPages(register struct vcache *avc, struct AFS_UCRED *credp)
115 ObtainReadLock(&avc->lock);
116 /* If we've already purged this version, or if we're the ones
117 writing this version, don't flush it (could lose the
118 data we're writing). */
119 if ((hcmp((avc->m.DataVersion), (avc->mapDV)) <= 0) ||
120 ((avc->execsOrWriters > 0) && afs_DirtyPages(avc))) {
121 ReleaseReadLock(&avc->lock);
124 ReleaseReadLock(&avc->lock);
125 ObtainWriteLock(&avc->lock,10);
127 if ((hcmp((avc->m.DataVersion), (avc->mapDV)) <= 0) ||
128 ((avc->execsOrWriters > 0) && afs_DirtyPages(avc))) {
129 ReleaseWriteLock(&avc->lock);
132 if (hiszero(avc->mapDV)) {
133 hset(avc->mapDV, avc->m.DataVersion);
134 ReleaseWriteLock(&avc->lock);
138 AFS_STATCNT(osi_FlushPages);
139 hset(origDV, avc->m.DataVersion);
140 afs_Trace3(afs_iclSetp, CM_TRACE_FLUSHPAGES, ICL_TYPE_POINTER, avc,
141 ICL_TYPE_INT32, origDV.low, ICL_TYPE_INT32, avc->m.Length);
143 ReleaseWriteLock(&avc->lock);
145 osi_VM_FlushPages(avc, credp);
147 ObtainWriteLock(&avc->lock,88);
149 /* do this last, and to original version, since stores may occur
150 while executing above PUTPAGE call */
151 hset(avc->mapDV, origDV);
152 ReleaseWriteLock(&avc->lock);
155 afs_lock_t afs_ftf; /* flush text lock */
159 /* This call is supposed to flush all caches that might be invalidated
160 * by either a local write operation or a write operation done on
161 * another client. This call may be called repeatedly on the same
162 * version of a file, even while a file is being written, so it
163 * shouldn't do anything that would discard newly written data before
164 * it is written to the file system. */
166 void osi_FlushText_really(register struct vcache *vp)
168 afs_hyper_t fdv; /* version before which we'll flush */
170 AFS_STATCNT(osi_FlushText);
171 /* see if we've already flushed this data version */
172 if (hcmp(vp->m.DataVersion, vp->flushDV) <= 0) return;
176 void afs_gfs_FlushText();
177 afs_gfs_FlushText(vp);
182 MObtainWriteLock(&afs_ftf,317);
183 hset(fdv, vp->m.DataVersion);
185 /* why this disgusting code below?
186 * xuntext, called by xrele, doesn't notice when it is called
187 * with a freed text object. Sun continually calls xrele or xuntext
188 * without any locking, as long as VTEXT is set on the
189 * corresponding vnode.
190 * But, if the text object is locked when you check the VTEXT
191 * flag, several processes can wait in xuntext, waiting for the
192 * text lock; when the second one finally enters xuntext's
193 * critical region, the text object is already free, but the check
194 * was already done by xuntext's caller.
195 * Even worse, it turns out that xalloc locks the text object
196 * before reading or stating a file via the vnode layer. Thus, we
197 * could end up in getdcache, being asked to bring in a new
198 * version of a file, but the corresponding text object could be
199 * locked. We can't flush the text object without causing
200 * deadlock, so now we just don't try to lock the text object
201 * unless it is guaranteed to work. And we try to flush the text
202 * when we need to a bit more often at the vnode layer. Sun
203 * really blew the vm-cache flushing interface.
206 #if defined (AFS_HPUX_ENV)
207 if (vp->v.v_flag & VTEXT) {
210 if (vp->v.v_flag & VTEXT) { /* still has a text object? */
211 MReleaseWriteLock(&afs_ftf);
217 /* next do the stuff that need not check for deadlock problems */
220 /* finally, record that we've done it */
221 hset(vp->flushDV, fdv);
222 MReleaseWriteLock(&afs_ftf);
224 #endif /* AFS_DEC_ENV */
228 /* I don't really like using xinval() here, because it kills processes
229 * a bit aggressively. Previous incarnations of this functionality
230 * used to use xrele() instead of xinval, and didn't invoke
231 * cacheinval(). But they would panic. So it might be worth looking
232 * into some middle ground...
234 static void afs_gfs_FlushText(register struct vcache *vp)
236 afs_hyper_t fdv; /* version before which we'll flush */
237 register struct text *xp;
240 MObtainWriteLock(&afs_ftf,318);
241 hset(fdv, vp->m.DataVersion);
245 /* this happens frequently after cores are created. */
246 MReleaseWriteLock(&afs_ftf);
250 if (gp->g_flag & GTEXT) {
252 xp = (struct text *) gp->g_textp ;
253 /* if text object is locked, give up */
254 if (xp && (xp->x_flag & XLOCK)) {
255 MReleaseWriteLock(&afs_ftf);
261 if (gp->g_flag & GTEXT) {/* still has a text object? */
266 /* next do the stuff that need not check for deadlock problems */
267 /* maybe xinval(gp); here instead of above */
270 /* finally, record that we've done it */
271 hset(vp->flushDV, fdv);
273 MReleaseWriteLock(&afs_ftf);
275 #endif /* AFS_DEC_ENV */
277 #endif /* AFS_TEXT_ENV */
279 /* mask signals in afsds */
280 void afs_osi_MaskSignals(void)
282 #ifdef AFS_LINUX22_ENV
287 /* unmask signals in rxk listener */
288 void afs_osi_UnmaskRxkSignals(void)
290 #ifdef AFS_LINUX22_ENV
295 /* register rxk listener proc info */
296 void afs_osi_RxkRegister(void)
298 #ifdef AFS_LINUX22_ENV
303 /* procedure for making our processes as invisible as we can */
304 void afs_osi_Invisible(void)
306 #ifdef AFS_LINUX22_ENV
307 afs_osi_MaskSignals();
310 u.u_procp->p_type |= SSYS;
313 curproc->p_flag |= SSYS;
316 set_system_proc(u.u_procp);
318 #if defined(AFS_DARWIN_ENV)
319 /* maybe call init_process instead? */
320 current_proc()->p_flag |= P_SYSTEM;
322 #if defined(AFS_FBSD_ENV)
323 curproc->p_flag |= P_SYSTEM;
325 #if defined(AFS_SGI_ENV)
327 #endif /* AFS_SGI_ENV */
329 AFS_STATCNT(osi_Invisible);
333 #ifndef AFS_LINUX20_ENV /* Linux version in osi_misc.c */
334 /* set the real time */
335 int afs_osi_SetTime(register osi_timeval_t *atv)
338 struct timestruc_t t;
340 t.tv_sec = atv->tv_sec;
341 t.tv_nsec = atv->tv_usec * 1000;
342 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
349 * To get more than second resolution we can use adjtime. The problem
350 * is that the usecs from the server are wrong (by now) so it isn't
351 * worth complicating the following code.
357 sta.time = atv->tv_sec;
361 #if defined(AFS_SGI_ENV)
367 sta.time = atv->tv_sec;
371 #if defined(AFS_FBSD_ENV)
372 /* does not impliment security features of kern_time.c:settime() */
374 struct timeval tv,delta;
380 timevalsub(&delta, &tv);
381 ts.tv_sec=atv->tv_sec;
382 ts.tv_nsec=atv->tv_usec * 1000;
383 set_timecounter(&ts);
384 (void) splsoftclock();
385 lease_updatetime(delta.tv_sec);
390 #if defined(AFS_DARWIN_ENV)
395 /* stolen from kern_time.c */
397 boottime.tv_sec += atv->tv_sec - time.tv_sec;
403 t.tv_sec = atv->tv_sec;
404 t.tv_usec = atv->tv_usec;
405 s = spl7(); time = t; (void) splx(s);
411 s = splclock(); time = *atv; (void) splx(s);
416 logtchg(atv->tv_sec);
418 #endif /* AFS_DARWIN_ENV */
419 #endif /* AFS_FBSD_ENV */
420 #endif /* AFS_SGI_ENV */
421 #endif /* AFS_SUN55_ENV */
422 #endif /* AFS_SUN5_ENV */
423 #endif /* AFS_AIX32_ENV */
424 AFS_STATCNT(osi_SetTime);
427 #endif /* AFS_LINUX20_ENV */
430 void *afs_osi_Alloc(size_t x)
432 register struct osimem *tm = NULL;
435 AFS_STATCNT(osi_Alloc);
436 /* 0-length allocs may return NULL ptr from AFS_KALLOC, so we special-case
437 things so that NULL returned iff an error occurred */
438 if (x == 0) return &memZero;
440 AFS_STATS(afs_stats_cmperf.OutStandingAllocs++);
441 AFS_STATS(afs_stats_cmperf.OutStandingMemUsage += x);
442 #ifdef AFS_LINUX20_ENV
443 return osi_linux_alloc(x, 1);
446 tm = (struct osimem *) AFS_KALLOC(size);
449 osi_Panic("osi_Alloc: Couldn't allocate %d bytes; out of memory!\n",
456 #if defined(AFS_SUN_ENV) || defined(AFS_SGI_ENV)
458 void *afs_osi_Alloc_NoSleep(size_t x)
460 register struct osimem *tm;
463 AFS_STATCNT(osi_Alloc);
464 /* 0-length allocs may return NULL ptr from AFS_KALLOC, so we special-case
465 things so that NULL returned iff an error occurred */
466 if (x == 0) return &memZero;
469 AFS_STATS(afs_stats_cmperf.OutStandingAllocs++);
470 AFS_STATS(afs_stats_cmperf.OutStandingMemUsage += x);
471 tm = (struct osimem *) AFS_KALLOC_NOSLEEP(size);
475 #endif /* SUN || SGI */
477 void afs_osi_Free(void *x, size_t asize)
479 register struct osimem *tm, **lm, *um;
481 AFS_STATCNT(osi_Free);
482 if (x == &memZero) return; /* check for putting memZero back */
484 AFS_STATS(afs_stats_cmperf.OutStandingAllocs--);
485 AFS_STATS(afs_stats_cmperf.OutStandingMemUsage -= asize);
486 #ifdef AFS_LINUX20_ENV
489 AFS_KFREE((struct osimem *)x, asize);
493 void afs_osi_FreeStr(char *x)
495 afs_osi_Free(x, strlen(x) + 1);
498 /* ? is it moderately likely that there are dirty VM pages associated with
501 * Prereqs: avc must be write-locked
503 * System Dependencies: - *must* support each type of system for which
504 * memory mapped files are supported, even if all
505 * it does is return TRUE;
507 * NB: this routine should err on the side of caution for ProcessFS to work
508 * correctly (or at least, not to introduce worse bugs than already exist)
511 int osi_VMDirty_p(struct vcache *avc)
515 if (avc->execsOrWriters <= 0)
516 return 0; /* can't be many dirty pages here, I guess */
518 #if defined (AFS_AIX32_ENV)
520 /* because of the level of hardware involvment with VM and all the
521 * warnings about "This routine must be called at VMM interrupt
522 * level", I thought it would be safest to disable interrupts while
523 * looking at the software page fault table. */
525 /* convert vm handle into index into array: I think that stoinio is
526 * always zero... Look into this XXX */
527 #define VMHASH(handle) ( \
528 ( ((handle) & ~vmker.stoinio) \
529 ^ ((((handle) & ~vmker.stoinio) & vmker.stoimask) << vmker.stoihash) \
533 unsigned int pagef, pri, index, next;
535 index = VMHASH(avc->vmh);
536 if (scb_valid(index)) { /* could almost be an ASSERT */
538 pri = disable_ints();
539 for (pagef = scb_sidlist(index); pagef >= 0; pagef = next) {
540 next = pft_sidfwd(pagef);
541 if (pft_modbit(pagef)) { /* has page frame been modified? */
551 #endif /* AFS_AIX32_ENV */
553 #if defined (AFS_SUN_ENV)
554 if (avc->states & CMAPPED) {
556 for (pg = avc->v.v_s.v_Pages ; pg ; pg = pg->p_vpnext) {
569 * Solaris osi_ReleaseVM should not drop and re-obtain the vcache entry lock.
570 * This leads to bad races when osi_ReleaseVM() is called from
571 * afs_InvalidateAllSegments().
573 * We can do this because Solaris osi_VM_Truncate() doesn't care whether the
574 * vcache entry lock is held or not.
576 * For other platforms, in some cases osi_VM_Truncate() doesn't care, but
577 * there may be cases where it does care. If so, it would be good to fix
578 * them so they don't care. Until then, we assume the worst.
580 * Locking: the vcache entry lock is held. It is dropped and re-obtained.
582 void osi_ReleaseVM(struct vcache *avc, struct AFS_UCRED *acred)
586 osi_VM_Truncate(avc, 0, acred);
589 ReleaseWriteLock(&avc->lock);
591 osi_VM_Truncate(avc, 0, acred);
593 ObtainWriteLock(&avc->lock, 80);
598 void shutdown_osi(void)
600 AFS_STATCNT(shutdown_osi);
601 if (afs_cold_shutdown) {
602 LOCK_INIT(&afs_ftf, "afs_ftf");
606 int afs_osi_suser(void *credp)
609 return afs_suser(credp);
617 /* afs_osi_TraverseProcTable() - Walk through the systems process
618 * table, calling afs_GCPAGs_perproc_func() for each process.
621 #if defined(AFS_SUN5_ENV)
622 void afs_osi_TraverseProcTable(void)
625 for (prp = practive; prp != NULL; prp = prp->p_next) {
626 afs_GCPAGs_perproc_func(prp);
631 #if defined(AFS_HPUX_ENV)
634 * NOTE: h/proc_private.h gives the process table locking rules
635 * It indicates that access to p_cred must be protected by
637 * mp_mtproc_unlock(p);
639 * The code in sys/pm_prot.c uses pcred_lock() to protect access to
640 * the process creds, and uses mp_mtproc_lock() only for audit-related
641 * changes. To be safe, we use both.
644 void afs_osi_TraverseProcTable(void)
649 MP_SPINLOCK(activeproc_lock);
650 MP_SPINLOCK(sched_lock);
654 * Instead of iterating through all of proc[], traverse only
655 * the list of active processes. As an example of this,
656 * see foreach_process() in sys/vm_sched.c.
658 * We hold the locks for the entire scan in order to get a
659 * consistent view of the current set of creds.
662 for(p = proc; endchain == 0; p = &proc[p->p_fandx]) {
663 if (p->p_fandx == 0) {
671 afs_GCPAGs_perproc_func(p);
676 MP_SPINUNLOCK(sched_lock);
677 MP_SPINUNLOCK(activeproc_lock);
681 #if defined(AFS_SGI_ENV)
684 /* TODO: Fix this later. */
685 static int SGI_ProcScanFunc(void *p, void *arg, int mode)
689 #else /* AFS_SGI65_ENV */
690 static int SGI_ProcScanFunc(proc_t *p, void *arg, int mode)
692 afs_int32 (*perproc_func)(struct proc *) = arg;
694 /* we pass in the function pointer for arg,
695 * mode ==0 for startup call, ==1 for each valid proc,
696 * and ==2 for terminate call.
699 code = perproc_func(p);
703 #endif /* AFS_SGI65_ENV */
705 void afs_osi_TraverseProcTable(void)
707 procscan(SGI_ProcScanFunc, afs_GCPAGs_perproc_func);
709 #endif /* AFS_SGI_ENV */
711 #if defined(AFS_AIX_ENV)
712 void afs_osi_TraverseProcTable(void)
718 * For binary compatibility, on AIX we need to be careful to use the
719 * proper size of a struct proc, even if it is different from what
720 * we were compiled with.
722 if (!afs_gcpags_procsize)
725 simple_lock(&proc_tbl_lock);
726 for (p = (struct proc *)v.vb_proc, i = 0;
728 p = (struct proc *)((char *)p + afs_gcpags_procsize), i++) {
730 if (p->p_stat == SNONE)
732 if (p->p_stat == SIDL)
734 if (p->p_stat == SEXIT)
739 if (PROCMASK(p->p_pid) != i) {
740 afs_gcpags = AFS_GCPAGS_EPIDCHECK;
746 if ((p->p_nice < P_NICE_MIN) || (P_NICE_MAX < p->p_nice)) {
747 afs_gcpags = AFS_GCPAGS_ENICECHECK;
751 afs_GCPAGs_perproc_func(p);
753 simple_unlock(&proc_tbl_lock);
757 #if defined(AFS_OSF_ENV)
758 void afs_osi_TraverseProcTable(void)
760 struct pid_entry *pe;
762 #define pidNPID (pidtab + npid)
767 for (pe = pidtab; pe < pidNPID; ++pe) {
768 if (pe->pe_proc != PROC_NULL)
769 afs_GCPAGs_perproc_func(pe->pe_proc);
775 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
776 void afs_osi_TraverseProcTable(void)
779 LIST_FOREACH(p, &allproc, p_list) {
780 if (p->p_stat == SIDL)
782 if (p->p_stat == SZOMB)
784 if (p->p_flag & P_SYSTEM)
786 afs_GCPAGs_perproc_func(p);
791 #if defined(AFS_LINUX22_ENV)
792 void afs_osi_TraverseProcTable()
794 struct task_struct *p;
796 read_lock(&tasklist_lock);
797 for_each_task(p) if (p->pid) {
798 if (p->state & TASK_ZOMBIE)
800 afs_GCPAGs_perproc_func(p);
802 read_unlock(&tasklist_lock);
806 /* return a pointer (sometimes a static copy ) to the cred for a
808 * subsequent calls may overwrite the previously returned value.
811 #if defined(AFS_SGI65_ENV)
812 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *p)
816 #elif defined(AFS_HPUX_ENV)
817 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *p)
823 * Cannot use afs_warnuser() here, as the code path
824 * eventually wants to grab sched_lock, which is
830 #elif defined(AFS_AIX_ENV)
832 /* GLOBAL DECLARATIONS */
835 * LOCKS: the caller must do
836 * simple_lock(&proc_tbl_lock);
837 * simple_unlock(&proc_tbl_lock);
838 * around calls to this function.
841 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *pproc)
843 struct AFS_UCRED *pcred = 0;
846 * pointer to process user structure valid in *our*
849 * The user structure for a process is stored in the user
850 * address space (as distinct from the kernel address
851 * space), and so to refer to the user structure of a
852 * different process we must employ special measures.
854 * I followed the example used in the AIX getproc() system
855 * call in bos/kernel/proc/getproc.c
857 struct user *xmem_userp;
859 struct xmem dp; /* ptr to xmem descriptor */
860 int xm; /* xmem result */
867 * The process private segment in which the user
868 * area is located may disappear. We need to increment
869 * its use count. Therefore we
870 * - get the proc_tbl_lock to hold the segment.
871 * - get the p_lock to lockout vm_cleardata.
872 * - vm_att to load the segment register (no check)
873 * - xmattach to bump its use count.
874 * - release the p_lock.
875 * - release the proc_tbl_lock.
876 * - do whatever we need.
877 * - xmdetach to decrement the use count.
878 * - vm_det to free the segment register (no check)
883 /* simple_lock(&proc_tbl_lock); */
884 if (pproc->p_adspace != NULLSEGVAL) {
886 simple_lock(&pproc->p_lock);
888 if (pproc->p_threadcount &&
889 pproc->p_threadlist) {
892 * arbitrarily pick the first thread in pproc
894 struct thread *pproc_thread =
898 * location of 'struct user' in pproc's
901 struct user *pproc_userp =
902 pproc_thread->t_userp;
905 * create a pointer valid in my own address space
909 (struct user *)vm_att(pproc->p_adspace,
912 dp.aspace_id = XMEM_INVAL;
913 xm = xmattach(xmem_userp,
918 simple_unlock(&pproc->p_lock);
920 /* simple_unlock(&proc_tbl_lock); */
921 if (xm == XMEM_SUCC) {
923 static struct AFS_UCRED cred;
926 * What locking should we use to protect access to the user
927 * area? If needed also change the code in AIX/osi_groups.c.
930 /* copy cred to local address space */
931 cred = *xmem_userp->U_cred;
937 vm_det((void *)xmem_userp);
943 #elif defined(AFS_OSF_ENV)
944 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *pr)
946 struct AFS_UCRED *rv=NULL;
952 if((pr->p_stat == SSLEEP) ||
953 (pr->p_stat == SRUN) ||
954 (pr->p_stat == SSTOP))
959 #elif defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
960 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *pr)
962 struct AFS_UCRED *rv=NULL;
963 static struct AFS_UCRED cr;
969 if((pr->p_stat == SSLEEP) ||
970 (pr->p_stat == SRUN) ||
971 (pr->p_stat == SSTOP)) {
974 cr.cr_uid=pr->p_cred->pc_ucred->cr_uid;
975 cr.cr_ngroups=pr->p_cred->pc_ucred->cr_ngroups;
976 memcpy(cr.cr_groups, pr->p_cred->pc_ucred->cr_groups, NGROUPS *
984 #elif defined(AFS_LINUX22_ENV)
985 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *pr)
987 struct AFS_UCRED *rv=NULL;
988 static struct AFS_UCRED cr;
994 if ((pr->state == TASK_RUNNING) ||
995 (pr->state == TASK_INTERRUPTIBLE) ||
996 (pr->state == TASK_UNINTERRUPTIBLE) ||
997 (pr->state == TASK_STOPPED)) {
1000 cr.cr_ngroups=pr->ngroups;
1001 memcpy(cr.cr_groups, pr->groups, NGROUPS * sizeof(gid_t));
1008 const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC *pr)
1010 struct AFS_UCRED *rv=NULL;
1021 #endif /* AFS_GCPAGS */